Rare Species

Rare Species

INR's Oregon Biodiversity Information Center (ORBIC) was formed in large part to aid in the conservation of Oregon's rare species and ecosystems. The rich diversity of ecosystems and native plants and animals is one of Oregon's most distinctive and valued qualities. Oregon has rain forests, dry Ponderosa pine forests, oak woodlands, alpine meadows, prairies, deserts, marshes, estuaries, dunes, rocky headlands, lakes and streams, and an abundance of plants, animals, fungi, algae, and other species that inhabit them.

ORBIC helps preserve these species and habitats in Oregon by cataloging rare species locations, ranking species by their rarity and risk of extirpation, mapping ecosystem types and habitats, creating species distribution models, monitoring snowy plovers on the Oregon coast, allocating Section 6 funds to endangered invertebrate projects, and participating in a variety of local and regional projects with a wide range of agencies, organizations, and partnerships.

You can learn more about the species on our rare species list and contribute your own observations to assist in conservation efforts on our Rare Species of Oregon iNaturalist Project. The Oregon Department of Fish and Wildlife also has an Oregon Wildlife Conservation iNaturalist Project focusing on Oregon Conservation Strategy Species and other Oregon wildlife.

Additional archived projects include a downloadable Excel spreadsheet Rare Plant Guide to Oregon's threatened and endangered plants and state and global rank assessments for several species under the Survey and Manage program for the Forest Service and Bureau of Land Management.

If you are interested in learning more about our work, please contact Eleanor Gaines (for animals) and contact Gabriel Campbell (for plants). 

Endangered Invertebrates

The U.S. Fish and Wildlife Service (USFWS) has granted Oregon Parks and Recreation Department’s Natural Areas Program limited authority to administer and manage a program for federally threatened and endangered invertebrate species, as provided under Section 6 of the US Federal Endangered Species Act.

ORBIC supports the rare and endangered invertebrate program in the following ways:

  • Gather as much information as possible on those invertebrates that are currently considered rare, threatened or endangered in order to enable managers to protect critical habitat or populations.
  • Promote inventory and taxonomic work on undescribed or poorly known species which may face significant threats.
  • Assist in the USFWS recovery efforts for the three invertebrates already protected under the Endangered Species Act. This includes coordination, inventory, management and research projects for the Oregon silverspot butterfly, the Fender's blue butterfly, Taylor’s checkerspot butterfly,  Franklin’s bumblebee, and the vernal pool fairy shrimp.

The list of invertebrate species in the book Rare, Threatened and Endangered Species of Oregon reflects our current understanding of the status of the rare invertebrates in Oregon. The list, however, represents only a fraction of the diversity of invertebrate species found in Oregon, and is generally biased towards groups that have been well studied (e.g. caddisflies, butterflies, mollusks), and is lacking for groups of other species that are poorly known. In cooperation with federal agencies and universities, we are hopeful that our ongoing efforts and partnerships will continue to build upon our current knowledge of rare invertebrate species in Oregon.

You can download a spreadsheet of the invertebrate list or view the PDF of our current and archived RTE books at our Rare Species page.

Oregon Rare Species Publications

One of the Oregon Biodiversity Information Center's main tasks is to list and rank rare, threatened, and endangered (RTE) species in Oregon. Using our Biotics biodiversity database of species occurrences throughout the state and by consulting with agencies, specialists, academics, and the public, ORBIC reviews and publishes this list every two to three years.

Species ranks are important for natural resource management, prioritization of restoration or conservation efforts, and to highlight species that need more research or protection. The ranks that ORBIC produces are shared internationally through the NatureServe network of natural heritage programs and conservation data centers.

Definitions of ranks, lists, and abbreviations used in the RTE publications can be found on the RTE Definitions page.

Versions of our Rare, Threatened, and Endangered Species publication that are available as PDF format are listed below with links to those documents. Paper copies of older editions of the book may be available. Details on obtaining printed copies from Odin Ink at PSU are at the bottom of the page.

Oregon Rare, Threatened, and Endangered Species Publications

2023 Rare, Threatened, and Endangered Species of Oregon (in prep.)
The full publication is in prep. In the meantime, excerpts will be posted as they become available.    
Excerpts by Category PDF Excerpts Excel Excerpts
Vascular Plants - final version, January 2023 2023 Vascular Plant List 2023-rte-vascs.xlsx
Non-Vascular Plants and Fungi - final version, January 2023 2023 Non-Vascular Plant and Fungi List 2023-rte-nonvascs.xlsx
Additional Resources    
Summary of Vascular and Non-Vascular Plant and Fungi Changes 2022 Plant and Fungi Species Recommendations (Excel)  
Codes and Abbreviations 2023 Codes and Abbreviations  

2019 Rare, Threatened, and Endangered Species of Oregon
Full 2019 Publication in PDF Format 133 pages 3.1 MB
Excerpts by Category PDF Excerpts Excel Excerpts
Vascular Plants Vascular Plant List with Drops and Name Changes 2019-rte-vascs.xlsx
Non-Vascular Plants and Fungi Non-Vascular Plant List with Drops and Name Changes 2019-rte-nonvascs.xlsx
Vertebrate Animals Vertebrate Animal List with Drops and Name Changes 2019-rte-verts.xlsx
Invertebrate Animals Invertebrate Animal List with Drops and Name Changes 2019-rte-inverts.xlsx
Additional Resources    
Summary of Vascular and Non-Vascular Plant and Fungi Changes ORBIC 2018 Rare Plant and Fungi Meeting Recommendations.xlsx  
Summary of Vertebrate Animal Changes Book_verts_2019_changes.xlsx  
Summary of Invertebrate Animal Changes Book_Inverts_2019_changes.xlsx  


2016 Rare, Threatened, and Endangered Species of Oregon

Full 2016 Publication in PDF Format 130 pages 2.3 MB
Excerpts by Category PDF Excerpts Excel Excerpts
Vascular Plants Vascular Plant List 2016-rte-vascs.xlsx
Non-Vascular Plants and Fungi Non-Vascular Plants and Fungi List 2016-rte-nonvascs.xlsx
Vertebrate Animals Vertebrate Animal List 2016-rte-verts.xlsx
Invertebrate Animals Invertebrate Animal List 2016-rte-inverts.xlsx
Additional Resources PDF Resources Excel Resources
Ecoregion Map OR Ecoregion and County Map  
Codes Used 2016 Codes  
Summary of Vascular Plant Changes   vasc_2016_changes_summary.xlsx
Summary of Non-vascular and Fungi Changes   nonvas_2016_changes_summary.xlsx
Summary of Animal Changes   2016_rte_animal_changes_summary.xlsx
Errata   errata_040517.xslx

2013 Rare, Threatened, and Endangered Species of Oregon

Full 2013 Publication in PDF Format 111 pages 1.1 MB
Excerpts by Category PDF Exerpts Excel Excerpts
Vascular Plants Vascular Plant List 2013-vascs.xlsx
Non-vascular Plants/Fungi Non-Vascular Plant/Fungi List 2013-nonvascs.xlsx
Vertebrate Animals Vertebrate Animal List 2013-verts.xlsx*
Invertebrate Animals Invertebrate Animal List 2013-inverts.xlsx**
Additional Resources PDF Resources Excel Resources
Ecoregion Map OR Ecoregion and County Map  
Codes Used 2013 Codes  
County Names and Abbreviations   ORCountyAbbrev.xlsx
Summary of Vascular Changes   2013-vasc-rank-changes.xls
Summary of Non-Vascular Changes   2013-nonvasc-changes.xls

* Prior to 10/10/2013, this file had some errors in the federal status column. These have been corrected in the current file.

** Updated 12/29/2014. Updated distribution of Pterostichus johnsoni and federal status of Euphydryas editha taylori.

2010 Rare, Threatened, and Endangered Species of Oregon

Full 2010 Publication in PDF Format 105 pages 1.6 MB
Excerpts by Category PDF Exerpts Excel Excerpts
Vascular Plants Vascular Plant List 2010-vascs.xls
Non-vascular Plants/Fungi Non-Vascular Plant/Fungi List 2010-nonvascs.xls
Vertebrates Vertebrate List 2010-verts.xls
Invertebrates Invertebrate List 2010-inverts.xls
Additional Resources    
Ecoregion Map OR Ecoregion and County Map  
Codes Used 2010 Codes  

2007 Rare, Threatened, and Endangered Species of Oregon

Full 2007 Publication in PDF Format 100 pages 1.3 MB
Excerpts by Category Excel Sheet
Vascular Plants 2007-vascs.xls
Non-vascular Plants/Fungi 2007-nonvascs.xls
Vertebrates 2007-verts.xls
Invertebrates 2007-inverts.xls

2004 Rare, Threatened, and Endangered Species of Oregon

Full 2004 Publication in PDF Format 105 pages 1.3 MB
Excerpts by Category Process Notes Excel Sheet
Vascular Plants Vascular Process Notes Vascular Plant List
Non-vascular Plants/Fungi Nonvascular Process Notes Non-Vascular Plant/Fungi List
Vertebrates Vertebrate Process Notes Vertebrate List
Invertebrates Invertebrate Process Notes Invertebrate List

Archived Rare Species Publications



# Pages

Size (mb)


Rare, Threatened, and Endangered Plants and Animals of Oregon




Rare, Threatened, and Endangered Species of Oregon




Rare, Threatened, and Endangered Plants and Animals of Oregon




Rare, Threatened, and Endangered Plants and Animals of Oregon




Rare, Threatened, and Endangered Plants and Animals of Oregon




Rare, Threatened, and Endangered Plants and Animals of Oregon




Rare, Threatened, and Endangered Plants and Animals of Oregon




Rare, Threatened, and Endangered Plants and Animals of Oregon




Rare, Threatened, and Endangered Plants and Animals of Oregon




Rare, Threatened and Endangered Vascular Plants in Oregon (auth. Jean Siddall et al.)



Notes on Species Lists in PDF and Spreadsheet Formats

These spreadsheets contain the same information in the RTE publication, but in an easily sortable format. Files are Microsoft Office and Open Office compatible.

A note on federal status: Before 2019, in the book and the PDF lists, federal status was reported on the state level. In the Excel lists, federal status was reported on the national level. For example, Columbia spotted frog is a federal Candidate in Oregon (C), but other populations in the US do not have this status, so its national federal status is partial status (PS). After 2019, both the PDFs and Excel excerpts only report the federal status as it applies to populations in Oregon.

Printed Books from Odin Ink

The 2016, 2013, and 2010 editions of the RTE book are available for printing from Odin Ink, an on-demand printing company at PSU. Printed books are about $9.00, depending on page number, plus shipping and handling. Shipping generally costs about $7.00 flat rate. Bulk order discounts may be available. Call Odin Ink at (503) 226-2631, or e-mail [email protected] to place your order.

Rare Species Ranking, Definitions, and Documentation

Ranking Systems

An important responsibility of ORBIC is to review and rank rare, threatened, and endangered species of Oregon. We assign Heritage Ranks to animals, plants, and fungi that are or may become rare in Oregon. Heritage Ranks are decided through expert review, discussion, input from interested parties, and trends in sightings and population data.

Heritage Ranks

The Heritage Ranks are a part of an international ranking system first developed by The Nature Conservancy and now managed by NatureServe. This system is used by Heritage programs in all 50 states in the USA, at the 8 Canadian Conservation Data Centres, and network partners in several Latin American countries. A brief definition of these ranks can be found below. You can find more detailed discussion of these ranks at NatureServe's Conservation Status page.

In addition to ranking each species' conservation status, Heritage programs also rank each occurrence, or population group, of species that are found in each state. If you are interested in learning how we rank occurrences, see the Ranking Species Occurrences - A Generic Approach article by NatureServe, updated in January 2008. More background information on occurrence ranking can be found in the NatureServe Ranking Methodology publication from April 2009.

State and Federal Ranking Systems

In addition to our Heritage Ranks, the Oregon Department of Fish and Wildlife (ODFW), the United States Fish and Wildlife Service (USFWS), and the Oregon Department of Agriculture (ODA) also rank species. We include these rankings in our publication, Rare,Threatened and Endangered Species of Oregon.

You can view the current ODFW and USFWS rankings for vertebrates at ODFW's Wildlife Division. ODFW has also compiled a Sensitive Species list to address species which are not currently considered threatened but which may need proactive protection to maintain their populations. Current ODA plant listings are found at their Plant Conservation pages.

Rare, Threatened, and Endangered Species of Oregon

ORBIC publishes this book every two or three years with updated ranks for rare species in Oregon. The latest version of the RTE book is available as a PDF file at our Rare Species Lists page. Archived PDF versions of the RTE books are also available on this page. Paper copies of older editions of the book may be available. If you are interested in these paper editions, please contact [email protected]. Future editions of the RTE book will be available as a PDF file only.

Ranking Definitions 

ORBIC participates in an international system for ranking rare, threatened and endangered species throughout the world. The system was developed by The Nature Conservancy and is now maintained by NatureServe in cooperation with Heritage Programs or Conservation Data Centers (CDCs) in all 50 states, 9 Canadian provinces, and in 13 Latin American countries. The ranking is a 1-5 scale with 1 being critically imperiled and 5 being secure. When determining species rank many factors are taken into account, including the number of known occurrences, threats, inherent sensitivity, area occupied, and other biological and anthropogenic factors. Documentation for several species ranking decisions are available on our Ranking Documentation information (see below).

Global Ranks

Ranks are developed for different portions of a species range. The first and most critical rank describes the species status globally, and best describes the risk of extinction. This is called the Global Rank and begins with a "G". If the taxon has a trinomial (a subspecies, variety or recognized race), this is followed by a "T" rank indicator. A "Q" at the end of this line indicates the taxon has taxonomic questions. National Ranks beginning with the letter "N" describe a species' status in specific nations such as the United States, Mexico, or Canada, but are not often used in the US.

State Ranks

The most widely used NatureServe rank in the United States are the State Ranks, which describe the rarity of a species within each state's boundary. These State Ranks begin with the letter "S". Global, National, and State ranks all use a 1-5 ranking system, summarized below:

1 = Critically imperiled because of extreme rarity or because it is somehow especially vulnerable to extinction or extirpation, typically with 5 or fewer occurrences.

2 = Imperiled because of rarity or because other factors demonstrably make it very vulnerable to extinction (extirpation), typically with 6-20 occurrences.

3 = Rare, uncommon or threatened, but not immediately imperiled, typically with 21-100 occurrences.

4 = Not rare and apparently secure, but with cause for long-term concern, usually with more than 100 occurrences.

5 = Demonstrably widespread, abundant, and secure.

H = Historical Occurrence, formerly part of the native biota with the implied expectation that it may be rediscovered.

X = Presumed extirpated or extinct.

U = Unknown rank.

? = Not yet ranked or assigned rank is uncertain.

More details on the Heritage Ranking system and more definitions can be found at the NatureServe Web site and on their Conservation Status page. A complete description of the ranking process is available from Natureserve's Methodology for Assigning Ranks.

Heritage Lists

ORBIC evaluates the NatureServe ranks and further refines the data for state application through placing species on their Lists 1 through 4. The fact that Oregon and California have such high rates of species endemism was the reason for the implementation of the 1-4 Heritage Listings in Oregon and California. In particular, most heritage programs consider all G1, G2 or G3 taxa as needing protection. Based on a snapshot search of NatureServe explorer, 1138 taxa in Oregon are ranked G1-G3 (or T1-T3). Of these, 615 taxa ranked as a G3 (or T3, excluding taxa with G3 in range ranks). Many of these are rare endemics which have few documented threats. Because of this, ORBIC evaluates G3 taxa individually based the significance of the species Oregon distribution, and overall threats to the taxa. This evaluation is the primary analysis used to determine which ORBIC list they are placed on.

Brief Summary of ORBIC Lists:

List 1 contains taxa that are threatened with extinction or presumed to be extinct throughout their entire range. These are the taxa most at risk, and should be the highest priority for conservation action. Includes many rare Oregon endemic species.

List 2 contains taxa that are threatened with extirpation or presumed to be extirpated from the state of Oregon, but are secure or abundant elsewhere. These are often peripheral or disjunct species which are of concern when considering species diversity within Oregon's borders. They can be very significant when protecting the genetic diversity of a taxon. ORBIC regards extreme rarity as a significant threat and has included species which are very rare in Oregon but secure elsewhere on this list.

List 3 contains species for which more information is needed before status can be determined, but for which there is reason to believe they may be threatened or endangered in Oregon or throughout their range. Many taxa on this list may eventually be determined to belong on List 1 or List 2, so it is important that they be looked for.

List 4 contains taxa which are of conservation concern but currently do not meet the criteria for begin considered threatened or endangered. This includes taxa which are very rare but are currently secure, as well as taxa which are declining in numbers or habitat but are still too abundant to be proposed as threatened or endangered. While these taxa currently may not need the same active management attention as threatened or endangered taxa, they do require continued monitoring.

List 4 includes species that may be of conservation concern from a global or state perspective.

Ranking Documentation 

Tables of Results:

Vascular Plants  
Fungi and Lichen  

Introduction to Natural Heritage Ranks

One of the Oregon Biodiversity Information Center's tasks is to rank rare species in Oregon according to how at risk they are in Oregon. For endemic species and those for which we have ranking responsibility, we also assess species' status on a global scale. The conservation status ranks for the species on the linked pages below were assigned following NatureServe's protocol on species assessment. An explanation of the methodology, a description of the factors being assessed, and the spreadsheet calculator tool can be viewed and downloaded from NatureServe's Rank Calculator website. The calculator version used for these evaluations is noted in the footer of the document; if there is no footer the version was 2.0. For a brief description of the meaning of the rank codes, see our Rare Species Ranking Definitions (section above).

Ranks are assigned as a couplet, one for the global level and one for the state/Oregon level. If only the global ranking form is available, then the species is an Oregon endemic and the state rank and information will be the same. If only the state ranking form is available, then the species occurs outside of Oregon as well and Oregon does not have global ranking authority. The global ranks for these species therefore reflect the published values in the current Rare, Threatened, and Endangered Species of Oregon list, and global ranking authority rests with another state or with NatureServe.

Many of the vascular plant species have also been assessed for vulnerability to climate change using NatureServe's Climate Change Vulnerability Index calculator. Where it has been calculated, the score from the CCVI is listed in the "Climate Vulnerability" column of the table. This rank informs the "threats" section of the Element Rank Calculator, and provides a measure of how vulnerable a species is to negative impacts from predicted climate change. See NatureServe's Climate Change Vulnerability Index page for more information or to download a copy of the calculator.

The element ranks assigned to the species under the Survey and Manage Assessment project (completed in 2004) followed a similar protocol as the NatureServe Element Ranking methodology but the calculator tool had not been developed at that time. The ranks in the tables linked above supercede all other previous ranks for a given species.

As time allows more species will have their ranks documented and published in these tables, please check back periodically for updates.

Vascular Plant Ranks

Documentation forms for Oregon state and global ranks for vascular plants are provided in the table below. For detailed information on the ranking process, see Ranking Documentation. For a brief description of the meaning of the rank codes, see Rare Species Ranking Definitions. Species for which only a G-rank form is available are Oregon endemics, thus the S-rank information for these species is the same as the G-rank.

Tables of Results: Vascular Plants  |  Fungi  |  Vertebrates   |  Invertebrates

Vascular Plants

Scientific Name Common Name Global Rank State Rank Climate Vulnerability Rank Date Climate Vulnerability Date
Abronia umbellata ssp. breviflora Pink sandverbena G4G5T2 S1 High   2016-08-17
Achnatherum hendersonii Henderson ricegrass G3 S2 Moderate   2016-08-17
Achnatherum wallowaense Wallowa ricegrass G2G3 S2S3 Moderate   2016-08-17
Agrostis howellii Howell's bentgrass G2 S2 Extreme   2016-07-08
Aliciella triodon Coyote gilia G5 S2   2016-04-20  
Allium dictuon Blue Mt. onion G2 S2 Less Vulnerable   2016-08-01
Amsinckia carinata Malheur Valley fiddleneck G2 S2 Extreme   2016-08-01
Arabis koehleri var. koehleri Koehler's rockcress G3T1Q S1 High   2016-08-15
Arabis macdonaldiana Red Mountain rockcress G2 S1 Presumed Stable 2012-12-12 2012-12-21
Arabis modesta Rogue Canyon rockcress G3 S2 Less Vulnerable   2016-08-15
Arctostaphylos hispidula Gasquet manzanita G3 S2 Moderate   2016-08-15
Artemisia pycnocephala Coastal sagewort G4G5 S1 Extreme   2020-01-07
Astragalus applegatei Applegate's milk-vetch G1 S1 High 2012-11-16 2012-11-26
Astragalus californicus California milk-vetch G3 S1 Moderate   2016-08-10
Astragalus diaphanus var. diurnus South Fork John Day milk-vetch G4T2Q S2 High   2020-05-05
Astragalus lemmonii Lemmon's milk-vetch G2 S1 High 2013-04-29 2013-04-29
Astragalus misellus var. misellus Pauper milk-vetch G3T2? S2 Moderate   2020-05-05
Astragalus mulfordiae Mulford's milk-vetch G2 S1 Moderate 2013-04-22 2015-05-27
Astragalus peckii Peck's milk-vetch G3 S3 Moderate 2010-05-28 2016-08-16
Astragalus tegetarioides Bastard kentrophyta G3 S3 High 2010-05-31 2016-08-17
Astragalus tyghensis Tygh Valley milkvetch G2 S2 High   2016-08-01
Bensoniella oregana Bensonia G3 S3 High 2010-06-18 2016-08-15
Boechera atrorubens Sickle-pod rockcress G3 S2 Less Vulnerable   2017-06-01
Boechera hastatula Hells Canyon rockcress G2 S2 Moderate   2016-08-01
Boechera horizontalis Crater Lake rockcress G1 S1 High   2016-08-01
Boechera paddoensis Mt. Adams rockcress G1 S1   2016-04-21  
Botrychium ascendens Upward-lobed moonwort G3 S2 Moderate   2017-06-01
Botrychium crenulatum Crenulate moonwort G3 S2 Moderate   2017-06-01
Botrychium lineare Slender moonwort G2G3 S1 High   2017-06-01
Botrychium montanum Mountain grape-fern G3 S2 Moderate   2017-06-01
Botrychium paradoxum Peculiar moonwort G3G4 S1 Moderate 2013-01-29 2013-01-29
Botrychium pedunculosum Stalked moonwort G2G3 S1 Moderate   2017-06-01
Botrychium pumicola Pumice grape-fern G3 S3 Moderate 2010-06-21 2017-06-01
Brodiaea terrestris Dwarf brodiaea G4G5 S2 Extreme   2020-05-06
Calamagrostis breweri Brewer's reedgrass G3 S2 Extreme   2017-06-01
Calamagrostis tweedyi Tweedy's reedgrass G3 S1   2016-04-21  
California macrophylla Large-leaved filaree G3 S1 Moderate   2020-01-31
Calochortus coxii Cox's mariposa-lily G1 S1 Moderate 2012-11-16 2012-11-16
Calochortus greenei Greene's mariposa-lily G3 S3 Moderate 2010-06-23 2017-06-01
Calochortus howellii Howell's mariposa-lily G3 S3 Moderate 2010-06-25 2017-06-01
Calochortus longebarbatus var. peckii Peck's mariposa-lily G4T3 S3 Extreme 2010-06-28 2019-08-14
Calochortus nitidus Broad fruit mariposa lily G3 S1 Less Vulnerable   2017-06-01
Calochortus persistens Siskiyou mariposa-lily G2 S1 Presumed Stable 2013-03-29 2013-03-29
Calochortus umpquaensis Umpqua mariposa lily G3 S3 Moderate   2017-06-01
Camassia cusickii Cusick's camassia G3 S3   2024-07-11  
Camassia howellii Howell's camas G2 S2 Less vulnerable   2016-08-01
Camissonia parvula Lewis' river suncup G5 S2   2016-06-14  
Cardamine pattersonii Saddle Mt. bittercress G2 S2 High   2016-08-01
Carex concinna Low northern sedge G5 S1   2012-09-12  
Carex davyi Dry-spike sedge G2 S1 Less vulnerable   2016-08-01
Carex idahoa Idaho Sedge G2G3 S1 Extreme   2017-06-01
Carex klamathensis Klamath sedge G2 S2 Moderate   2016-08-01
Carex tahoensis Tahoe sedge G5 S1S2 High 2016-05-11 2016-05-11
Carex tiogana Tioga pass sedge G1 S1 Extreme 2012-11-15 2012-11-15
Carex zikae Short-stemmed sedge G5 S2 Moderate   2020-05-06
Castilleja chambersii Chambers' paintbrush G2 S2 High 2024-07-02 2016-08-01
Castilleja chlorotica Green-tinged paintbrush G3? S3? Moderate 2010-08-01 2017-06-01
Castilleja fraterna Fraternal paintbrush G2 S2 Extreme   2016-08-01
Castilleja levisecta Golden paintbrush G1 SX   2012-11-15  
Castilleja mendocinensis Mendocino coast paintbrush G2 S1 Extreme   2016-08-01
Castilleja oresbia Pale Wallowa paintbrush G3 S2S3 Presumed Stable 2013-04-10 2013-04-02
Castilleja rubida Purple alpine paintbrush G1 S1 Extreme 2019-08-15 2016-08-01
Castilleja schizotricha Split-hair paintbrush G3 S2 Moderate   2017-06-01
Chaenactis suffrutescens Shasta pincushion G3 S1   2016-04-20  
Chlorocrambe hastata Spearhead G3? S1 High   2020-01-30
Chloropyron maritimus ssp. palustris Pt. Reyes bird's-beak G4T2 S2 Extreme   2016-08-01
Cimicifuga elata var. alpestris Mountain tall bugbane G4T4 S4   2010-03-26  
Collomia mazama Mt. Mazama collomia G4 S4 High 2010-06-20  
Collomia renacta Barren valley collomia G1 S1 Presumed Stable 2012-11-09 2012-11-09
Corydalis aquae-gelidae Cold-water corydalis G3 S3 High 2010-07-10 2016-08-17
Cypripedium fasciculatum Clustered lady's-slipper G4 S2   2010-06-28  
Cryptantha grandiflora Clearwater cryptantha G3? S1S2 Moderate 2019-08-12 2019-08-13
Cryptantha leiocarpa Seaside cryptantha G3G4 S1 Extreme   2020-05-06
Delphinium leucophaeum White rock larkspur G2 S2 Moderate   2016-08-01
Delphinium oreganum Willamette Valley larkspur G3Q S1 Less vulnerable   2016-08-01
Delphinium pavonaceum Peacock larkspur G1Q S1 Less vulnerable   2016-08-01
Dicentra pauciflora Few-flowered bleedingheart G3? S1 Moderate   2020-01-23
Dodecatheon austrofrigidum Frigid shootingstar G2 S2 Moderate   2016-0-01
Enemion occidentale Western false rue-anemone G3? S1 Less Vulnerable   2020-01-23
Epilobium oreganum Oregon willow-herb G2 S2 Presumed Stable 2013-03-25 2013-03-25
Epilobium siskiyouense Siskiyou willow-herb G3 S2 Moderate   2020-01-22
Eremothera pygmaea Dwarf evening-primrose G3 S1 High   2020-01-22
Ericameria arborescens Golden fleece G4 S1 Less Vulnerable   2020-05-06
Erigeron cevinus Siskiyou daisy G3 S2 Less Vulnerable   2020-01-21
Erigeron davisii Englemann's daisy G3 S1 Less Vulnerable   2017-06-01
Erigeron howellii Howell's daisy G2 S2 Less vulnerable   2016-08-01
Erigeron latus Broad fleabane G3 S1? Moderate   2017-06-01
Erigeron oreganus Oregon daisy G3 S3 High 2010-07-02 2016-08-01
Erigeron stansellii Stansell's daisy G1 S1 High 2012-10-04 2020-05-06
Eriogonum calcareum   G5 S2S3   2012-10-04  
Eriogonum chrysops Golden buckwheat G2 S2 Less vulnerable 2012-11-19 2015-05-27
Eriogonum crosbyae var. crosbyae Crosby's buckwheat G3T3 S2 High   2020-01-09
Eriogonum crosbyae var. mystrium Pueblo Mountains buckwheat G2 S2   2012-10-10  
Eriogonum cusickii Cusick's eriogonum G2 S2 Moderate   2016-08-09
Eriogonum prociduum Prostrate buckwheat G2? S1? Moderate   2016-08-01
Eriogonum villosissimum Acker Rock wild buckwheat G1 S1 Moderate 2012-01-16 2016-08-01
Eriophorum chamissonis Russet cotton-grass G5 S1 High   2020-05-06
Erysimum concinnum Pacific wallflower G3 S1 Extreme   2016-08-01
Erythranthe hymenophylla Membrane-leaved monkeyflower G2 S1S2 Extreme   2016-08-09
Erythranthe inflatula Disappearing monkeyflower G3 S2S3 Less Vulnerable 2024-07-17 2020-01-14
Erythronium elegans Coast Range fawn-lily G2 S2 Less vulnerable   2016-08-01
Erythronium howellii Howell's adder's-tongue G3 S3 Moderate 2010-07-07 2020-01-14
Eucephalus gormanii Gorman's aster G3 S3 Moderate 2010-07-09 2020-01-07
Eucephalus vialis Wayside aster G3 S3 Less Vulnerable 2010-07-09 2020-01-13
Filipendula occidentalis Queen-of-the-forest G2 S2 Less vulnerable   2016-08-01
Frasera umpquaensis Umpqua swertia G3 S3 Moderate 2009-10-12 2016-08-19
Fritillaria gentneri Gentner's fritillaria G1 S1 Less Vulnerable 2012-11-08 2015-05-27
Gentiana plurisetosa Bristly gentian G2G3 S1 High   2020-01-13
Gentiana setigera Waldo gentian G2 S2 High   2016-08-01
Gilia millefoliata Seaside gilia G2 S1 High 2013-03-06 2013-03-11
Gratiola heterosepala Boggs Lake hedge-hyssop G2 S1 Extreme   2016-08-01
Hackelia bella Beautiful stickseed G3? S1 Less Vulnerable   2017-06-01
Hackelia cronquistii Cronquist's stickseed G3 S3 High 2010-07-12 2016-08-19
Hackelia ophiobia Three forks stickseed G3 S1 Moderate   2017-06-01
Hastingsia bracteosa ssp. atropurpurea Purple flowered rush lily G2T2 S2 Moderate   2016-08-01
Hastingsia bracteosa ssp. bracteosa Large-flowered rush lily G2T2 S2 Moderate   2016-08-01
Helianthus bolanderi Bolander's sunflower G4 S2 Moderate 2016-05-13 2016-05-13
Hesperocyparis bakeri Baker's cypress G3 S1 Less Vulnerable   2017-06-01
Horkelia hendersonii Henderson's horkelia G1G2 S1S2 Extreme   2016-08-01
Huperzia miyoshiana Pacific fir-moss G4 S1 Moderate 2016-05-12 2016-05-12
Iliamna latibracteata California globe-mallow G3 S2 Moderate   2017-06-02
Isoetes minima Midget quillwort   S2?   2024-07-15  
Ivesia rhypara var. rhypara Grimy ivesia G2T2 S1 High 2013-04-09 2015-05-27
Ivesia rhypara var. shellyi Shelly's ivesia G1G2T1T2 S1S2 High 2013-04-11 2013-04-11
Juncus kelloggii Kellogg's dwarf rush G3? S2? Less Vulnerable 2016-05-13 2016-05-13
Kalmiopsis fragrans North Umpqua kalmiopsis G2 S2 Moderate 2012-11-01 2012-11-01
Lasthenia ornduffii Large-flowered goldfields G2 S2 High   2016-08-01
Lathyrus holochlorus Thin-leaved peavine G2 S2 Less Vulnerable   2016-08-01
Lepidium davisii Davis' peppergrass G3 S1 High   2017-06-01
Lilium occidentale Western lily G1 S1 High 2012-10-16 2012-10-26
Limnanthes pumila ssp. pumila Dwarf wooly meadow-foam G1 S1 Extreme   2016-08-01
Limonium californicum Western marsh-rosemary G4 S1 Extreme   2019-08-14
Lomatium bentonitum Bentonite biscuitroot G1 S1   2012-10-04  
Lomatium cookii Cook's desert-parsley G1 S1 High 2012-10-22 2015-05-27
Lomatium englemannii Englemann's desert-parsley G3 S1 Less Vulnerable   2017-06-02
Lomatium erythrocarpum Red-fruited lomatium G1G2 S1S2 Extreme 2012-09-20 2012-09-20
Lomatium greenmanii Greenman's lomatium G1 S1 Extreme   2016-08-01
Lomatium ochocense Ochoco desert-parsley G2 S2 Presumed Stable 2012-09-12 2012-09-12
Lomatium pastorale Meadow lomatium G1G2 S1 Extreme   2016-08-01
Lomatium roseanum Rose's lomatium G2G3 S1 Moderate   2017-06-01
Lomatium suksdorfii Suksdorf's desert parsley G3 S2 Less Vulnerable   2017-06-01
Luina serpentina Colonial luina G3 S3 Extreme 2010-07-31 2016-08-19
Lupinus lepidus var. ashlanensis Mt. Ashland Lupine G1T1 S1 Extreme   2016-08-01
Lupinus lepidus var. cusickii Cusick's lupine G1T1 S1 High 2012-10-15 2012-10-15
Lupinus sabinianus Sabin's lupine G4 S4   2016-04-19  
Meconella oregana White fairypoppy G2G3 S1 Less Vulnerable   2017-06-01
Mentzelia mollis Smooth mentzelia G2 S2 Extreme   2016-08-01
Mentzelia packardiae Packard's mentzelia G2Q S2 High   2016-08-01
Micranthes hitchcockiana Saddle Mt. saxifrage G1 S1 High   2016-08-01
Mimulus hymenophyllus Membrane-leaf monkeyflower G2 S1S2 Extreme 2012-08-24 2012-09-28
Mimulus patulus Stem-leaved monkeyflower G3Q S2S4 High 2013-04-08 2013-04-08
Mirabilis macfarlanei Macfarlane's four-o'clock G2 S1 Moderate 2013-01-29 2013-01-29
Monardella purpurea Siskiyou monardella G3Q S3 Less Vulnerable   2017-06-01
Myosurus sessilis Sessile mousetail G2 S1 Moderate   2016-08-10
Navarretia willamettensis Willamette navarretia G1 S1 High   2016-08-01
Oenothera wolfii Wolf's evening-primrose G1 S1 High 2012-08-21 2012-09-10
Penstemon barrettiae Barrett's penstemon G2 S2 Moderate   2016-08-11
Penstemon deustus var. variabilis Hot-rock penstemon G5T1T2 S1S2 Less Vulnerable   2020-05-12
Penstemon glaucinus Blue-leaved penstemon G3 S3 Less Vulnerable 2010-07-14 2017-06-01
Penstemon peckii Peck's penstemon G3 S3 Less Vulnerable 2010-07-14 2016-08-19
Penstemon perpulcher Beautiful penstemon G3? S1 Less Vulnerable 2010-07-16 2017-06-01
Perideridia erythrorhiza Red-root yapah G2 S2 Presumed Stable 2012-09-06 2012-09-06
Phacelia argentea Silvery phacelia G2 S2 Extreme   2016-08-01
Phacelia inundata Playa phacelia G2 S2 High 2013-02-28 2015-05-27
Phacelia leonis Siskiyou phacelia G2 S1 Moderate 2013-02-28 2013-02-25
Phacelia minutissima Dwaft phacelia G3 S1 High   2017-06-01
Phemeranthus spinescens Spiny flame-flower G4 S2 Moderate   2020-05-12
Pilularia americana American pillwort G5 S2 Moderate   2020-05-12
Plagiobothrys hirtus Rough popcorn flower G1 S1 Extreme 2012-09-04 2012-09-04
Plagiobothrys salsus Desert allocarya G2G3 S1 High   2016-08-19
Pleuropogon oregonus Oregon semaphore grass G1 S1 Extreme 2012-08-22 2012-08-22
Pogogyne floribunda Profuse-flowered mesa mint G4 S1 High   2020-05-12
Prosartes parvifolia Siskiyou fairy bells G2? S1 Less Vulnerable   2016-08-01
Pyrrocoma radiata Snake River goldenweed G3 S3 Moderate 2010-07-26 2017-06-01
Pyrrocoma scaberula Rough pyrrocoma G3 S3 High 2010-07-20 2016-08-11
Ranunculus austrooreganus Southern Oregon buttercup G3 S3 Moderate   2016-08-01
Ranunculus triternatus Obscure Buttercup G2 S1 Presumed Stable 2012-12-07 2012-12-07
Romanzoffia thompsonii Thompson mistmaiden G3 S3 Moderate 2010-07-29 2020-01-09
Rorippa columbiae Columbia Cress G3 S3 Moderate 2010-08-08 2017-06-01
Rubus bartonianus Bartonberry G2 S2 High 2012-12-05 2012-12-05
Saxifragopsis fragarioides Strawberry saxifrage G3? S1 Moderate   2020-01-09
Schoenoplectus subterminalis Water clubrush G5 S2 Moderate   2020-05-12
Scirpus pendulus Drooping bulrush G5 S1 Less Vulnerable   2020-05-12
Sedum moranii Rogue River Stonecrop G2 S2 Presumed Stable 2012-11-20 2012-08-21
Senecio ertterae Ertter's senecio G2 S2 Extreme   2020-01-30
Sericocarpus rigidus White-topped aster G3 S2 Moderate   2017-06-01
Sidalcea hendersonii Henderson's sidalcea G3 S1 Extreme   2017-06-01
Sidalcea hickmanii ssp. petraea Neil Rock sidalcea G3 S1 Less Vulnerable   2017-06-01
Sidalcea hirtipes Bristly-stemmed Sidalcea G2 S2 High   2016-08-08
Silene spaldingii Spalding's catchfly G2 S2 High 2013-02-20 2013-02-21
Sisyrinchium hitchcockii Hitchcock's blue-eyed grass G2 S1 Moderate 2013-02-19 2013-02-19
Sisyrinchium sarmentosum Pale blue-eyed grass G1 S1 Moderate 2012-08-23 2015-05-27
Sophora leachiana Western Necklace G2 S2 Moderate   2016-08-02
Stanleya confertiflora Biennial stanleya G2 S2 Presumed Stable 2012-10-03 2012-08-24
Stephanomeria malheurensis Malheur wire-lettuce G1 S1 High 2012-08-27 2012-08-27
Streptanthus howellii Howell's streptanthus G2 S2 Less Vulnerable   2016-08-01
Sullivantia oregana Oregon sullivantia G2 S2 High   2016-08-01
Synthyris schizantha Fringed kittentail G4 SU Moderate   2020-05-12
Tauschia howellii Howell's tauschia G2 S1 Moderate 2014-07-23 2014-07-23
Thelypodium brachycarpum Short-podded thelypody G3 S2 Less Vulnerable   2017-06-02
Thelypodium eucosmum Arrow-leaf thelypody G2 S2 Moderate   2015-05-27
Thelypodium howellii ssp. howellii Howell's thelypody G2T2 S1 Extreme   2016-08-02
Thelypodium howellii ssp. spectabilis Howell's spectacular thelypody G2 T1S1 High 2013-02-14 2013-02-19
Townsendia montana Mountain townsendia GNR S1   2024-07-08  
Trifolium douglasii Douglas's clover G2 S2 Moderate 2013-02-11 2013-02-11
Trifolium leibergii Leiberg's clover G2 S2 Presumed Stable 2013-01-30 2013-01-30
Trifolium owyheense Owyhee clover G2 S2S3 High 2022-04-08 2015-05-27
Utricularia gibba Humped bladderwort G5 S1 Less Vulnerable   2019-08-14
Utricularia minor Lesser bladderwort G5 S4   2013-09-16  

Fungi Ranks

Documentation forms for state and global ranks for fungi are provided in the table below. Where taxa have recently changed scientific names, the previously used name is noted in the Previous Name column. For detailed information on the ranking process, see Ranking Documentation. For a brief description of the meaning of the rank codes, see Rare Species Ranking Definitions. Fields with an en dash ( – ) denotes that the species has not been documented in that state, at least at the time of the assessment. Results from the 2016-2018 fungi ranking effort can be downloaded in an Excel spreadsheet.

Tables of Results: Vascular Plants  |  Fungi  |  Vertebrates   |  Invertebrates


Scientific Name Previous Name Global Rank Oregon
State Rank
State Rank
State Rank
Albatrellopsis flettii   G4 S4 S3 S2 2017-03-09
Albatrellus avellaneus   G3 S1S2 S2 S1 2018-05-07
Albatrellus ellisii   G3Q S3 S2 S2S3 2018-12-12
Albatrellus skamanius   GU S1     2009-09-21
Aleurodiscus farlowii   G3? S1? S1?   2017-03-09
Alpova olivaceotinctus   G2 S1 S2 2017-03-09
Amanita armillariiformis   G3 S2     2010-06-01
Amogaster viridigleba   G1 S1     2010-06-01
Arcangeliella crassa   G3 S2     2010-06-01
Arcangeliella lactarioides   G3 S1     2010-06-01
Arrhenia lobata   G5 S1     2010-06-03
Asterophora lycoperdoides   G4 S2S3 S2S3 S2 2017-03-09
Asterophora parasitica   G3G4 S2 S2 2017-03-09
Baeospora myriadophylla   G3 S1 S3 S1S2 2017-03-09
Balsamia alba   G3 S2     2010-06-03
Balsamia nigrans Balsamia nigrens G2G3 S2 S2 2017-03-09
Balsamia platyspora   G3 S1     2010-06-04
Boletus subalpinus Gastroboletus subalpinus G4 S3S4 S1 S3? 2018-02-28
Bondarzewia mesenterica   G4Q S4 S3S4 S3 2018-12-17
Bridgeoporus nobilissimus   G2G3 S2 S2 S1 2018-12-05
Cantharellus subalbidus   G4 S3 S3 S3 2018-12-06
Catathelasma ventricosum   G4 S2 S3 S2 2017-03-09
Cazia flexiascus   G2 S1     2010-06-04
Chalciporus piperatus Boletus piperatus G4 S3S4 S4 S3S4 2017-03-09
Chamonixia caespitosa   G3? S2 S2 S1 2017-03-09
Chloroscypha flavida Gelatinodiscus flavidus G3 S3 S3 S1 2018-12-06
Choiromyces alveolatus   G2G3 S2 S1 S2 2018-12-10
Choiromyces venosus   G4? S1 S1 2017-08-08
Chroogomphus loculatus   G2Q S2 2017-08-08
Chrysomphalina grossula   G3 S2 S2 S1 2017-08-08
Clavariadelphus ligula   G4 S3 S3 S2 2018-12-11
Clavariadelphus occidentalis   G4 S3 S4 S3 2017-04-22
Clavariadelphus sachalinensis   G4 S3 S2 S2 2014-04-22
Clavariadelphus subfastigiatus   G3 S2 S1 S1 2017-04-22
Clavariadelphus truncatus   G5 S3 S3 S3 2018-12-12
Clavulina castaneipes var. lignicola   G3 S2 S2 2017-04-22
Clitocybe senilis   G4Q S1 S2 S1 2018-12-10
Clitocybe subditopoda   G3 S1 S3 S1 2017-03-09
Collybia bakerensis   G4 S3 S3 S3 2017-03-09
Conocybe subnuda   G4? S1     2010-06-04
Cortinarius barlowensis   G3 S2 S3 2017-03-09
Cortinarius boulderensis   G3 S2 S3 S1 2017-03-09
Cortinarius cyanites   G3Q S1S2 S3 S2 2017-08-18
Cortinarius depauperatus   G3? S1 S1 S1 2017-08-25
Cortinarius magnivelatus   G3 S3 S2 2017-01-11
Cortinarius olympianus   G3 S3 S3 S2 2017-01-12
Cortinarius pavelekii Thaxterogaster pavelekii G2 S2 S1 S1 2017-01-16
Cortinarius rainierensis Cortinarius speciosissimus G3G4 S1 S1? 2017-03-09
Cortinarius tabdularis   G2G3 S1 S1 2017-03-09
Cortinarius umidicola   G2?   S1   2017-03-09
Cortinarius valgus   G3 S1 S2 2017-03-09
Cortinarius variipes   G3 S1 S3   2017-03-09
Cortinarius verrucisporus   G3 S2 S2 2017-03-09
Cortinarius wiebeae   G1 S1 2017-03-09
Craterellus tubaeformis   G4G5 S3S4 S3S4 S3 2016-12-10
Cystangium lymanense Macowanites lymanensis G1 S1 2016-11-30
Dendrocollybia racemosa Collybia racemosa G3G4 S2 S3 S2 2017-03-09
Dermocybe humboldtensis   G1G2 SX S1 2018-08-27
Destuntzia fusca   G2G3 S1   S2 2017-03-09
Destuntzia rubra   G2 SH   S2 2017-03-09
Dichostereum boreale   G1 S1 2017-01-30
Elaphomyces anthracinus   G3 S1 2017-01-30
Elaphomyces decipiens   G3 S3     2010-06-04
Elaphomyces subviscidus   G2 S1 2017-01-19
Endogone acrogena   G2 S2 2017-03-09
Endogone oregonensis   G2 S2 2017-03-09
Entocybe nitida   G3G4 S1 S2 S2 2017-03-09
Entocybe speciosa Rhodocybe speciosa G3 S1 S2 2017-01-11
Fayodia bisphaerigera   G3Q S1 S3 S2 2018-12-10
Fevansia aurantiaca   G2 S2 2017-03-09
Galerina atkinsoniana   G4G5 S4 S4 S1 2017-03-09
Galerina cerina   G4 S3 S3 S2 2017-03-09
Galerina fuscobrunnea   G1 S1     2010-06-09
Galerina heterocystis   G4Q S2 S3 S2S3 2017-03-09
Galerina sphagnicola   G3G4 SU SU 2019-05-22
Gastroboletus imbellus   G1 S1 2017-03-09
Gastroboletus ruber   G3G4 S3 S3 S2 2018-02-28
Gastroboletus turbinatus   G4 S4 S3S4 S4 2018-02-28
Gastroboletus vividus   G3 S3 S3 2017-01-09
Gastrosuillus amaranthi   GH SH 2018-02-28
Gautieria magnicellaris   G3G4 S1 S1 2018-12-10
Gautieria otthii   G3Q S1 S1 2018-02-28
Genea compacta   G2 S1     2010-10-04
Glomus pubescens   G3 S1     2010-10-06
Glomus radiatum   G2G4 S1? S1? S1? 2018-03-01
Gomphus clavatus   G4 S3 S3 S3 2017-01-20
Guepinia helvelloides Tremiscus helvelloides G4 S3S4 S3S4 S3S4 2018-06-15
Gymnomyces fragrans Martellia fragrans G2 S1 S1 2016-11-30
Gymnomyces monosporus   G1 S1     2010-10-06
Gymnomyces nondistincta   G1 S1 S1 2017-03-09
Gymnopilus punctifolius   G4 S3 S3 S3 2016-11-21
Gyromitra californica Pseudorhizina californica G4 S3 S3 S3 2017-03-09
Hebeloma occidentale   G1 S1     2010-10-06
Hebeloma olympianum   G3 S3 2017-03-09
Hebeloma oregonense   G1 S1     2010-10-11
Hebeloma parcivelum   G1 S1     2010-10-10
Hebeloma pungens   G1 S1     2010-10-10
Helvella crassitunicata   G3 S3 S3 2016-11-23
Helvella elastica   G5 S2 S3 S1S2 2016-11-15
Hemimycena pseudocrispula   G3 S1     2010-10-10
Hydnotrya inordinata   G3 S3 S1 2016-11-25
Hydnotrya subnix   G1 S1 2016-11-25
Hydropus marginellus   G3G4 S2 S3 S2 2016-11-25
Hygrophorus albicarneus   G1 S1     2010-10-11
Hygrophorus albiflavus   G1 S1     2010-10-11
Hygrophorus caeruleus   G3 S2S3 S1S2 S2 2016-11-28
Hygrophorus karstenii   G3Q S3? 2016-11-28
Hygrophorus vernalis   G1G2 S1 S1 2016-11-28
Hypomyces luteovirens   G4 S2 S2 S1 2018-04-17
Lactarius crassus Arcangeliella crassa G3 S2S3 S2S3 2017-03-09
Lactarius lactarioides Arcangeliella lactarioides G2G3 S2? S2? 2017-03-09
Lactarius silviae Arcangeliella camphorata G2G3 S2S3 S1S2 2017-03-09
Leptonia violaceonigra   G2 S1     2010-08-25
Leucogaster citrinus   G4 S4 S4 S3 2017-03-09
Leucogaster microsporus   G2G3 S2 S1 S2 2018-11-29
Macowanites chlorinosmus   G3 S3 S1 S1 2016-11-29
Macowanites mollis   G3 S1 S2 2016-11-30
Martellia medlockii   G1 S1     2010-06-14
Muscinupta laevis Cyphellostereum laeve G3? S1 S2 2017-01-10
Mycena gaultheri   G1 S1     2010-06-14
Mycena hudsoniana   G2G3 S1 S2 S2 2018-11-29
Mycena overholtsii   G4 S3 S3 S2S3 2018-12-10
Mycena quiniaultensis Mycena quinaultensis G3 S1S2 S2S3 S2S3 2018-05-18
Mycena tenax   G4 S2 S2S3 S3 2016-12-05
Mycetinis applanatipes   G2 S1 S2 2016-11-30
Mythicomyces corneipes   G2G3 S1S2 S2S3 2016-12-15
Neoalbatrellus caeruleoporus Albatrellus caeruleoporus G2G3Q S2 S1 S1 2017-03-09
Neolentinus adhaerens   G3 S1 S2 2016-12-15
Neolentinus kauffmanii   G4 S3 S3 S2S3 2016-12-08
Nolanea verna var. isodiametrica   T3 S1     2010-06-15
Octaviania cyanescens   G1 S1 S1 2016-12-09
Octaviania macrospora   GH SH 2018-08-24
Otidea leporina   G5 S3S4 S3 S3 2017-03-09
Otidea smithii   G3 S2 S1 S2 2016-12-12
Omphalina isabellina   G1 S1     2010-06-15
Pachycudonia monticola Cudonia monticola G3G4 S3 S2 S1 2018-02-08
Phaeoclavulina abietina Ramaria abietina G4 S2 S2 S2S3 2017-04-22
Phaeocollybia attenuata   G3Q S3 S3 S2S3 2016-12-12
Phaeocollybia californica   G3 S2? S3 2018-12-10
Phaeocollybia dissiliens   G2 S2 S1 2018-05-21
Phaeocollybia fallax   G4Q S3S4 S2S3 S2S3 2017-03-09
Phaeocollybia gregaria   G1G2Q S1S2 2017-03-09
Phaeocollybia kauffmanii   G3G4 S3 S3 S2S3 2018-05-21
Phaeocollybia lilacifolia   G2 S1S2 S1 SH 2017-03-09
Phaeocollybia olivacea   G3Q S2S3 S1 S3 2017-03-09
Phaeocollybia oregonensis   G2 S2 S1 2017-03-09
Phaeocollybia piceae   G3 S3? S2 S2 2018-12-10
Phaeocollybia pseudofestiva   G2G3Q S2S3 S2 S2S3 2018-05-22
Phaeocollybia scatesiae   G3 S3 S2? S2 2019-12-10
Phaeocollybia sipei   G3 S3 S1 S1? 2017-03-09
Phaeocollybia spadicea   G3G4 S3S4 S2 S2 2017-03-09
Phellodon atratus   G4 S3? S3 S3 2018-05-23
Pholiota nubigena Nivatogastrium nubigenum G4 S3 SH S3 2018-05-18
Polyozellus multiplex   G4 S3 S3 S1 2016-12-31
Pseudaleuria quinaultiana   G2 S2 S2 2017-04-22
Radiigera bushnellii   G1 S1     2010-06-16
Ramaria amyloidea   G3 S3 S2 S1 2018-12-10
Ramaria araiospora   G4 S4 S3 S2 2017-04-22
Ramaria aurantiisiccescens   G3 S2S3 S2 S1 2018-12-10
Ramaria botrytis var. aurantiiramosa   GUT2 S1 S1 S1 2017-04-22
Ramaria celerivirescens   G4 S3 S3 S2 2017-04-22
Ramaria conjunctipes var. sparsiramosa   GUT3 S3 S2 S2 2017-04-22
Ramaria coulterae   G3 S2S3 S2 2018-12-10
Ramaria cyaneigranosa   G4 S3 S3 S1S2 2018-12-10
Ramaria gelatiniaurantia   G3 S2 S2S3 S2 2017-04-22
Ramaria gracilis   G3 S1 S1? S1? 2018-12-11
Ramaria hilaris var. olympiana   GUT1 S1 S1 2017-04-22
Ramaria largentii   G3 S3 S3 S3 2018-12-11
Ramaria lorithamnus   G3Q S1 S1 2018-06-04
Ramaria maculatipes   G3 S3 S2 S2 2018-12-11
Ramaria rainierensis   G2 S1 S1 S1 2017-04-22
Ramaria rubella f. blanda Ramaria rubella var. blanda GUT3? S2? S2? 2018-06-05
Ramaria rubribrunnescens   G3 S2 S2S3 S1 2017-04-22
Ramaria rubrievanescens   G4 S3 S3 S3 2018-12-11
Ramaria rubripermanens   G4 S4 S3 S2 2018-12-11
Ramaria spinulosa var. diminutiva   GUT2 SNA S1 S1 2018-08-03
Ramaria stricta var. concolor Ramaria concolor f. marrii GUT1 S1 S1 S1 2018-07-17
Ramaria stuntzii   G4 S3 S3 S2S3 2018-12-11
Ramaria suecica   G4 S2 S1S2 S1 2018-06-07
Ramaria thiersii   G3 S2   2018-06-07
Ramaria tsugina Ramaria concolor f. tsugina G3 S2 S1 S1 2018-07-17
Ramaria verlotensis   G1G2 S1 S1 2017-04-22
Rhizopogon abietis   G3 S3 S1 2018-12-11
Rhizopogon alexsmithii Alpova alexsmithii G2 S2 S1 S1 2017-03-09
Rhizopogon atroviolaceus   G3 S3 S1 2017-01-10
Rhizopogon bacillisporus   G4 S3     2010-08-06
Rhizopogon brunneiniger   G3 S2 S2 2010-08-06
Rhizopogon chamaleontinus   G1 S1 2017-01-10
Rhizopogon clavitisporus   G3 S3     2010-08-09
Rhizopogon ellipsosporus   G2 S2 S1 2018-12-11
Rhizopogon evadens var. subalpinus   GUT3 S3 S3 S2 2018-12-17
Rhizopogon exiguus   G3 S2 S1 2017-03-09
Rhizopogon flavofibrillosus   G3 S3 S2 2017-03-09
Rhizopogon inquinatus   G2 S1 2017-01-10
Rhizopogon rogersii   G3 S3     2010-08-10
Rhizopogon semireticulatus   G3 S3     2010-08-11
Rhizopogon semitectus   G2 S1     2010-08-11
Rhizopogon subcinnamomeus   G2 S1     2010-08-11
Rhizopogon subclavitisporus   G2 S2     2010-08-12
Rhizopogon subpurpurascens   G3 S2S3     2010-08-16
Rhizopogon truncatus   G4 S4 S1 S2 2018-12-17
Rhizopogon variabilisporus   G2 S1     2010-08-16
Rickenella swartzii   G4 S2 S2 S1S2 2017-01-11
Rubroboletus haematinus Boletus haematinus G3 S2 S1 S2 2017-03-09
Rubroboletus pulcherrimus   G3 S3 S2 S2 2017-03-09
Russula idahoensis Cystangium idahoensis G2 S1 2017-03-09
Russula mustelina   G3 S1S2 S1 S2 2018-12-17
Russula subabietis Gymnomyces abietis G3G4 S3S4 S1S3 S3S4 2018-03-01
Sarcodon fuscoindicus   G3 S2S3 S3 S2 2018-12-17
Sclerotinia veratri   G3G4 S1     2010-08-17
Sedecula pulvinata   G3 S2 S2 S2 2018-06-12
Sowerbyella rhenana   G3 S2S3 S1S2 S2S3 2017-03-09
Sparassis radicata Sparassis crispa G4 S4 S3S4 S3 2018-06-15
Spathularia flavida   G4 S3 S3 S3 2018-12-17
Squamanita paradoxa   G3 SH     2010-08-17
Stagnicola perplexa   G3 S1 S1 2017-01-16
Stephensia bynumii   G1 S1     2010-08-17
Stropharia albivelata Pholiota albivelata G3 S2 S3 S2 2017-03-09
Suillus umbrinus Gastrosuillus umbrinus GH SH 2018-02-28
Tolypocladium ophioglossoides Cordyceps ophioglossoides G4 S2 S3 S1 2017-03-09
Trichoderma alutaceum Podostroma alutaceum G3 S1 S2 S1 2017-04-22
Tricholoma venenatum   G3? S2 S1? S1 2018-06-18
Tricholomopsis fulvescens   G2G3 SX S2 S2 2018-12-13
Tuber asa   G2 S2 S1 2018-12-12
Tuber pacificum   G1 S1 2017-03-09
Turbinellus floccosus Gomphus bonarii G4G5 S4S5 S4S5 S4S5 2018-12-17
Turbinellus kauffmanii Gomphus kauffmanii G4 S3 S3 S2 2017-03-09
Tylopilus porphyrosporus   G4 S3 S3 S3 2017-01-18
Zelleromyces papyraceus Octavianina papyracea G1 S1 2016-12-09

Vertebrate Animal Ranks

Documentation forms for Oregon state and global ranks for vertebrate animals are provided in the table below. For detailed information on the ranking process, see Ranking Documentation. For a brief description of the meaning of the rank codes, see Rare Species Ranking Definitions. Many of these assessments are archived at PDXScholar. More information on these species and ranks in other states can be found on NatureServe Explorer.

Tables of Results: Vascular Plants  |  Fungi  |  Vertebrates   |  Invertebrates

Vertebrate Animals

Scientific Name Common Name Global Rank State Rank Rank Date
Entosphenus lethophagus Pit-Klamath brook lamprey G3G4 S3 2016-07-11
Entosphenus minimus Miller Lake lamprey G3 S2 2013-01-03
Entosphenus tridentatus Pacific lamprey G4 S1S2 2016-07-11
Lampetra pacifica Pacific brook lamprey GNR S2? 2023-01-17
Lampetra similis Klamath lamprey G3 S2 2023-11-03
Oncorhynchus clarkii lewisi Westslope cutthroat trout G4T4 S2 2014-10-15
Oncorhynchus mykiss gairdneri Inland Columbia Basin redband trout G5T4 S2S3 2014-08-26
Oncorhychus mykiss pop. 42 Fort Rock redband trout G5T3Q S2 2015-04-02
Oncorhychus mykiss pop. 44 Chewaucan redband trout G5T3Q S3 2015-02-16
Oregonichthys crameri Oregon chub G3 S3 2013-07-01
Rhinichthys umatilla Umatilla dace G4 S1 2023-11-06


Scientific Name Common Name Global Rank State Rank Rank Date
Ambystoma mavortium melanosticum Blotched tiger salamander G5T4 S3? 2019-01-18
Anaxyrus boreas Boreal toad G4 S4S5 2023-10-18
Aneides ferreus Clouded salamander G3G4 S3S4 2019-01-18
Aneides flavipunctatus Black salamander G4 S2 2013-05-13
Batrachoseps attenuatus California slender salamander G5 S3 2023-12-01
Batrachoseps wrighti Oregon slender salamander G3 S3 2010-02-21
Dicamptodon copei Cope's giant salamander G3 S2? 2022-10-20
Lithobates pipiens Northern leopard frog G5 S1 2023-12-01
Plethodon elongatus Del Norte salamander G4 S3 2019-01-18
Plethodon larselli Larch Mountain salamander G2G3 S2? 2022-11-01
Rana cascadae Cascades frog G3 S3 2022-11-01
Rana pretiosa Oregon spotted frog G2 S1S2 2023-10-19
Rhyacotriton cascadae Cascade torrent salamander G3 S2S3 2022-11-09
Rhyacotriton kezeri Columbia torrent salamander G2G3 S2S3 2022-11-09
Rhyacotriton variegatus Southern torrent salamander G3? S3? 2022-11-09
Spea intermontana Great Basin spadefoot G5 S5 2023-10-25


Scientific Name Common Name Global Rank State Rank Rank Date
Crotalus oreganus Western rattlesnake G5 S5 2016-03-31
Lampropeltis getula Common kingsnake G5 S3 2010-04-21
Lampropeltis zonata California mountain kingsnake G4G5 S3S4 2010-06-17
Masticophis taeniatus Striped whipsnake G5 S3S4 2010-07-08
Phrynosoma hernandesi Short-horned lizard G5 S3 2013-07-25
Sonora semiannualata Ground snake G5 S3 2016-03-31


Scientific Name Common Name Global Rank State Rank Rank Date
Accipiter cooperi Cooper's hawk G5 S4 2012-09-27
Accipiter gentilis Northern goshawk G5 S3S4 2013-04-10
Accipeter striatus Sharp-shinned hawk G5 S4 2016-03-28
Aechmophorus occidentalis Western grebe G5 S4B 2016-03-22
Agelaius tricolor Tricolored blackbird G1G2 S2B 2019-02-12
Anthus rubescens American pipit G5 S4 2013-03-04
Aquila chrysaetos Golden eagle G5 S4 2024-01-18
Amphispiza bilineata Black-throated sparrow G5 S3 2016-07-12
Artemisiospiza nevadensis Sagebrush sparrow G5 S4B 2016-03-23
Asio flemmeus Short-eared owl G5 S3 2013-04-12
Asio otus Long-eared owl G5 S3S4 2019-03-11
Baeolophous inornatus Oak titmouse G4 S3S4 2019-03-11
Baeolophus ridgwayi Juniper titmouse G5 S3 2012-03-14
Brachyramphus marmoratus Marbled murrelet G3 S2 2016-03-24
Branta bernicla Brant G5 S2N 2016-04-06
Branta canadensis occidentalis Dusky Canada goose G5T3 S3N 2016-04-05
Branta hutchinsii leucopareia Aleutian Canada goose G5T3 S3N 2016-04-05
Butorides viriscens Green heron G5 S4 2012-03-14
Centrocercus urophasianus Greater sage-grouse G3G4 S2 2019-01-31
Cerorhinca monocerata Rhinoceros auklet G5 S2B 2016-03-24
Charadrius nivosus nivosus Western snowy plover G3T3 S2 2013-04-30
Circus cyaneus Northern harrier G5 S3 2012-10-19
Contopus cooperi Olive-sided flycatcher G4 S2S3B 2013-04-29
Coturnicops noveboracensis Yellow rail G4 S2B 2016-03-15
Cypseloides niger Black swift G4 S2?B 2016-03-16
Dendragapus obscurus Dusky grouse G4 S3 2012-10-05
Dolichonyx oryzivorus Bobolink G5 S2B 2016-03-16
Dryobates albolarvatus White-headed woodpecker G4 S3 2023-01-16
Egretta thula Snowy egret G5 S2B 2016-03-17
Empidonax traillii adastus Willow flycatcher G5T5 S3B 2013-04-19
Empidonax traillii brewsteri Little willow flycatcher G5T3T4 S3B 2013-04-19
Eremohpila alpestris strigata Streaked horned lark G5T2 S2B 2016-03-18
Falco peregrinus anatum American peregrine falcon G4T4 S3 2016-04-11
Fratercula cirrhata Tufted puffin G5 S1 2010-04-16
Gymnorhinus cyanocephalus Pinyon jay G5 S3 2016-07-12
Haemorhous cassinii Cassin's finch G5 S4 2016-07-13
Haemorhous purpureus Purple fnch G5 S4? 2016-07-12
Histrionicus histrionicus Harlequin duck G4 S2B,S3N 2016-03-22
Lanius ludovicianus Loggerhead Shrike G4 S3B,S2N 2012-10-05
Leucosticte astrata Black rosy-finch G4 S2B 2019-03-06
Melanerpes lewis Lewis' woodpecker G4 S3B,S2?N 2023-10-19
Oceanodroma leucorhoa Leach's storm-petrel G5 S4 2016-06-23
Oreortyx pictus Mountain quail G5 S3S4 2013-04-22
Oreoscoptes montanus Sage thrasher G5 S3S4 2013-06-20
Phalacrocorax pelagicus Pelagic cormorant G5 S3 2016-06-23
Picoides albolarvatus White-headed woodpecker G4 S2 2014-10-15
Picoides arcticus Black-backed woodpecker G5 S3 2016-07-12
Picoides dorsalis American Three-toed woodpecker G5 S3 2016-07-12
Pipilo chlorulus Green-tailed towhee G5 S3S4 2016-07-12
Pooecetes gramineus affinis Oregon vesper sparrow G5T3? S1B 2020-02-18
Psiloscops flammeolus Flammulated owl G4 S3B 2019-03-07
Regulus satrapa Golden-crowned kinglet G5 S3 2013-06-20
Selasphorus calliope Calliope hummingbird G5 S4 2016-07-12
Selasphorus rufus Rufous hummingbird G5 S4 2016-07-12
Selasphorus sasin Allen's hummingbird G5 S3S4 2016-07-12
Spizella breweri Brewer's sparrow G5 S3 2013-06-20
Strix occidentalis caurina Northern spotted owl G3G4T3 S2 2015-12-14
Sphyrapicus thyroideus Williamson's sapsucker G5 S3S4B, S3N 2016-07-12
Vireo olivaceus Red-eyed vireo G5 S3S4B 2013-03-14


Scientific Name Common Name Global Rank State Rank Rank Date
Alces alces Moose G5 S3 2022-06-23
Arborimus albipes White-footed vole G3G4 S3S4 2022-10-19
Arborimus longicaudus Red tree vole G3G4 S2S3 2022-10-19
Arborimus longicaudus pop. 1 Red tree vole North Oregon Coast DPS G2G3TNR S1S2 2022-11-04
Brachylagus idahoensis Pygmy rabbit G4 S2 2016-04-01
Canis lupus Gray wolf G5 S1S2 2012-03-14
Erethizon dorsatum Common porcupine G5 S3S4 2019-05-10
Eumetopias jubatus Northern sea lion G3 S3 2019-01-25
Lasionycteris noctivigans Silver-haired bat G5 S3S4 2013-05-06
Lepus townsendii White-tailed jackrabbit G5 S2? 2021-01-06
Myotis lucifugus Little brown myotis G3 S3 2013-05-08
Ochotona princeps American pika G5 S2S3 2019-02-01
Ovis canadensis canadensis Rocky Mountain bighorn sheep G4T4 S2 2016-07-13
Pekania pennanti Fisher G5 S1S2 2016-05-02
Parastrellus hesperus Canyon bat G5 S3 2016-07-13
Sorex preblei Preble's shrew   S3 2023-10-26
Thomomys bulbivorus Camas pocket gopher G3G4 S3S4 2022-10-19
Urocitellus washingtoni Washington ground squirrel G2 S2? 2022-10-19
Vulpes vulpes necator Sierra Nevada red fox G5T1T2 S1 2013-05-08

Invertebrate Animal Ranks

Documentation forms for Oregon state and global ranks for invertebrate animals are provided in the table below. For detailed information on the ranking process, see Ranking Documentation. For a brief description of the meaning of the rank codes, see Rare Species Ranking Definitions.

Tables of Results: Vascular Plants  |  Fungi  |  Vertebrates   |  Invertebrates

Invertebrate Animals

Scientific Name Common Name Global Rank State Rank Rank Date
Acupalpus punctulatus Marsh ground beetle G2? S2 2010-07-08
Aeshna sitchensis Zigzag Darner G5 S2 2016-06-28
Aeshna subarctica Subarctic darner G5 S2? 2016-06-28
Agonum belleri Beller's ground beetle G3 S1 2016-02-16
Andrena winnemuccana A miner bee G2? S2? 2013-06-14
Atrazonotus umbrosus Umbrose seed bug G3? S3? 2013-07-10
Bombus caliginosus Obscure bumblebee G2G3 S2? 2016-06-28
Bombus fervidus Yellow bumblebee G4? S4 2023-12-11
Bombus morrisoni Morrison Bumblebee G4G5 S2 2023-12-11
Bombus occidentalis Western bumblebee GU S1S2 2010-08-09
Bombus suckleyi Suckley's cuckoo bumblebee G1G3 S1? 2016-06-28
Boreostolus americanus American unique-headed bug GNR S3S4 2016-05-18
Callophrys johnsoni Johnson's hairstreak G3G4 S2S3 2023-11-14
Capnia kersti A stonefly G1G2 S1 2016-06-30
Carinacauda stormi Cascades axetail slug G2G3 S2S3 2022-11-10
Cicindela hirticollis couleensis Hairy-necked tiger beetle G5T3 S2? 2016-05-18
Cicindela hirticollis siuslawensis Siuslaw hairy-necked tiger beetle G5T1T2 S1S2 2016-07-01
Cicindela purpurea hatchi A tiger beetle G5T3T4 S2S3? 2016-07-01
Colias christina pseudochristina Intermountain sulphur G3G4T2T4 S2 2010-07-14
Colias christina sullivanti Sullivan's sulphur G5T2T3 S2 2012-01-10
Colligyrus depressus Harney Basin duskysnail   S2 2023-11-16
Colligyrus sp. 4 Columbia duskysnail G2 S2 2011-10-07
Criocoris saliens Salien plant bug G2? S3 2016-05-18
Cryptomastix devia Puget oregonian G3 S1 2011-10-06
Cryptomastix hendersoni Columbia Gorge oregonian G1G2 S2 2019-03-22
Danaus plexippus pop. 1 Monarch - California overwintering population G4T2T3 S1S2B 2018-02-23
Dendrocoris arizonensis Arizona stinkbug G4 S3? 2016-05-18
Deroceras hesperium Evening fieldslug G2 S2 2011-10-21
Dumontia oregonensis A water flea G1G3 S1 2010-10-28
Erpetogomphus compositus White-belted ringtail G5 S4 2016-07-01
Farula constricta A Farulan caddisfly G1G2 S1S2 2016-07-01
Fluminicola fuscus Columbia pebblesnail   S2 2023-11-14
Fluminicola sp. 3 Diminutive pebblesnail G1 S1 2011-10-21
Fluminicola sp. 11 Nerite pebblesnail G1 S1 2011-10-21
Fluminicola sp. 14 Tall pebblesnail G1 S1 2011-10-10
Gomphus kurilis Pacific clubtail G4 S3S4 2010-08-09
Gomphus lynnae Columbia clubtail G2 S2 2010-07-22
Helicodiscus salmonaceus Salmon coil G2 S2? 2016-07-01
Hemphillia burringtoni Jumping-slug G1G2 S1S2? 2016-07-05
Hesperarion mariae Tillamook westernslug G3 S3 2009-05-05
Hesperia colorado oregonia Oregon branded skipper G5T3T4 S2 2013-06-18
Homoplectra schuhi Schuh's Homoplectran Caddisfly G3Q S3? 2016-06-24
Hoplistoscelis heidemanni Heidemann’s damsel bug G4 S2S3 2016-07-05
Juga sp. 1 Basalt juga G2 S2? 2019-06-05
Margaritifera falcata Western pearlshell G5 S3 2016-07-05
Megomphix lutarius Umatilla megomphix G1G2 S1S2 2022-11-11
Monadenia chaceana Chace sideband G2G3 S2S3 2011-11-08
Monadenia fidelis celeuthia Traveling sideband G4G5T2Q S2 2016-07-06
Monadenia fidelis columbiana Columbia sideband G4G5T2Q S2 2016-07-06
Monadenia fidelis minor Oregon snail (Dalles sideband) G4G5T2 S1S2 2011-10-25
Philotiella leona Leona's little blue butterfly G1G2 S1 2009-11-16
Physella cooperi Olive physa G3 SU 2010-07-20
Physella virginea Sunset physa G4 S1S2 2010-07-21
Plebejus saepiolus littoralis Coastal greenish blue G5T1T3 S1 2010-08-03
Polites mardon Mardon skipper G2 S2? 2022-11-09
Pristiloma crateris Crater Lake tightcoil G3 S3 2022-11-11
Pristiloma idahoense Thinlip tightcoil G2G3 S1? 2016-07-07
Pristiloma johnsoni Broadwhorl tightcoil G2G3 S3 2010-09-13
Pristinicola hemphilli Pristine springsnail G3 S3 2016-07-06
Prophysaon sp. 1 Klamath tail-dropper G2 S2 2016-07-07
Pterostichus johnsoni Johnson's waterfall carabid beetle GNR S3 2010-08-09
Pterostichus rothi Roth's blind carabid beetle G2? S2? 2013-06-18
Pyrgulopsis robusta Jackson Lake springsnail G5 S2S3 2016-07-07
Rhyacophila viquaea A Rhyacophilan Caddisfly G1G2 S1 2016-07-07
Scaphinotus mannii Mann's Mollusk-eating Ground Beetle G1G2 S1 2011-11-01
Speyeria coronis coronis Coronis fritillary G5T3T4 S2 2013-06-14
Speyeria cybele Great Spangled Fritillary G5 S4 2016-07-07
Vertigo andrusiana Pacific vertigo G2G3 S1 2016-07-07
Vespericola sierranus Siskiyou hesperian G2 S2? 2016-07-07